Optical Nonlinearity of Violet Phosphorus and Applications in Fiber Lasers  

作　　者：杨慧苒 齐梦婷 李旭鹏 薛泽 鲁晨浩 成嘉伟 韩冬冬 李璐 Hui-ran Yang;Meng-ting Qi;Xu-peng Li;Ze Xue;Chen-hao Lu;Jia-wei Cheng;Dong-dong Han;Lu Li(School of Science,Xi’an University of Posts and Telecommunications,Xi’an 710121,China;China Academy of Space Technology(Xi’an),Xi’an 710100,China;School of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]School of Science,Xi’an University of Posts and Telecommunications,Xi’an 710121,China [2]China Academy of Space Technology(Xi’an),Xi’an 710100,China [3]School of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China

出　　处：《Chinese Physics Letters》2024年第1期16-20,共5页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.62005212 and 12075190);the Young Talent Fund of University Association for Science and Technology in Shaanxi,China(Grant No.20210112);the New Star Project of Science and Technology of Shaanxi Province(Grant No.2022KJXX-69),the Fund for Outstanding Young Talents of China Academy of Space Technology(Xi’an)(Grant No.Y21-RCFYJQ1-03);the Young Elite Scientists Sponsorship Program by CAST(Grant No.2022QNRC001);the Open Foundation of State Key Laboratory of Transient Optics and Photonics(Grant No.SKLST202207).

摘　　要：A D-shaped fiber is coated with a new two-dimensional nanomaterial,violet phosphorus(VP),to create a saturable absorber(SA)with a modulation depth of 3.68%.Subsequently,the SA is inserted into a fiber laser,enabling successful generation of dark solitons and bright–dark soliton pairs through adjustment of the polarization state within the cavity.Through further study,mode-locked pulses are achieved,proving the existence of polarization-locked vector solitons.The results indicate that VP can be used as a polarization-independent SA.

关 键 词：POLARIZATION FIBER ABSORBER 

分 类 号：TN248[电子电信—物理电子学]